OSEC

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From: Hallihan, Rick (DCS) (HallihanPTNAVAIR.NAVY.MIL)
Date: Mon Mar 12 2001 - 08:45:29 CST

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    For those that don't feel like doing the binary conversions, the same
    operation can be done as follows:

    Example IP: aaa.bbb.ccc.ddd
    decimal notation is ddd+(ccc*256)+(bbb*256*256)+(aaa*256*256*256)

    --Rick H.

    -----Original Message-----
    From: Pablo [mailto:pabloAIIND.UPV.ES]
    To: FOCUS-MSSECURITYFOCUS.COM
    Subject: Re: Win2k ISA Server Implementation Plan

    I'll try to explain this by steps:

    Step 1: You get a valid URL. Example: http://ww.securityfocus.com/
    Step 2: You get the IP of this host: http://66.38.151.10/
    Step 3: You convert the numbers to binary:
                    http://01000010.00100110.10010111.00001010/
    Step 4: You remove the dots:
                    http://01000010001001101001011100001010/
    Step 5: You convert this binary number to decimal:
                    http://1109825290/

    Saludos.
    Pablo